EASY
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The dynamic mass of electron having rest mass mo and moving with speed 0.8C is 

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Important Questions on Relativity

MEDIUM
An electron is chased by a proton. The speed of the electron is 0.9c. Show that their relative velocity is c. (Where c is speed of light in vacuum).
MEDIUM
Explain, simultaneity, using Lorentz equations.
MEDIUM
A spaceship is launched from earth surface with a velocity of 0.3c. It fires a rocket with a velocity of 0.6c relative to spaceship away from the earth. What will be the velocity of rocket observe from Earth’s surface? In the above case, calculate the velocity as observed from the rocket surface.
MEDIUM
A spaceship is launched from earth surface with a velocity of 0.3c. It fires a rocket with a velocity of 0.6c relative to spaceship away from the earth. What will be the velocity of rocket observe from Earth’s surface? In the above case, The velocity as observed from the rocket surface is _____c. (Write the answer up to two decimal places)
EASY
Two particles approach each other with a speed 0.8C w.r. to the laboratory. Their relative speed is 
EASY
Two particles approach each other with a velocity of 0.9 C. What is their relative velocity as observed by A?
EASY
When a particle is moving with a velocity of light C relating to S its velocity as observed by an observer in the frame S'is-
EASY
Lorentz transformations are based on the principle of consistency of the velocity of light.
EASY
What would be the mass of body at rest, if it explodes into two objects of mass 2 Kg each moving with a speed of 0.8 C relative to the original body?